CN105189195B

CN105189195B - Detent fitting for a vehicle seat, and vehicle seat

Info

Publication number: CN105189195B
Application number: CN201480008722.XA
Authority: CN
Inventors: P·蒂尔
Original assignee: Johnson Controls Components GmbH and Co KG
Current assignee: Keiper Seating Mechanisms Co Ltd
Priority date: 2013-02-14
Filing date: 2014-02-13
Publication date: 2017-04-19
Anticipated expiration: 2034-02-13
Also published as: CN105189195A; PL2956333T3; US9889775B2; EP2956333B1; EP2956333A1; US20160001680A1; WO2014125032A1

Abstract

The invention relates to a detent fitting (10) for a vehicle seat, in particular for a motor vehicle seat, comprising a first fitting part (11) and a second fitting part (12) which can be rotated relative to each other and comprising bolts (16) which are guided in one of the two fitting parts (11, 12) in a movable manner between a locked state and an unlocked state and which interact with a gear ring of the other of the two fitting parts (11, 12) in the locked state in order to lock the detent fitting (10). The detent fitting also comprises a third fitting part (74) which is mounted in a pivotal manner relative to the first fitting part (11), said third fitting part (74) being lockable with a detent plate (115) fixed to the first fitting part (11) or with the first fitting part (11) by means of a pawl (80) which is mounted in a first hinge point (D1) on the third fitting part (74). According to the invention, the third fitting part (74), a locking cam (90) mounted in a second hinge point (D2) on the third fitting part (74), a coupling (98) which is connected to the locking cam (90) in a third hinge point (D3) and to the pawl (80) in a fourth hinge point (D4) in an articulated manner, and the pawl (80) define a four-link chain (74, 80, 98, 90). The invention additionally relates to a vehicle seat (1) with at least one such detent fitting (10).

Description

For the braking accessory and seat of seat

Technical field

The present invention relates to a kind of brake accessory, the braking accessory includes the first set and assembling parts department that can relative to each other rotate With the second set and assembling parts department, and by movably in being included between lock-out state and released state in two set and assembling parts departments one The capture pieces of guiding, wherein another the ring gear in lock-out state, the capture pieces and two set and assembling parts departments interacts, with The first locking mechanism of locking braking accessory, and including the 3rd set and assembling parts department, the 3rd set and assembling parts department is with relative to the first set and assembling parts department It is pivotally mounted on the first set and assembling parts department, wherein the 3rd set and assembling parts department can be installed by means of in the first pin joint Ratchet on the 3rd set and assembling parts department and with the keep plate for being fastened to the first set and assembling parts department or with the locking of the first set and assembling parts department, thus, the system Dynamic accessory has second locking mechanism.The invention further relates to a kind of vehicle.

Background technology

The B1 of EP 0 705 727 disclose it is a kind of with free functions of pivoting and back gradient remember for vehicle seat The fitting system of chair.The fitting system includes the first braking accessory, and second brakes accessory, and in described two braking accessories Between actuated element.Each braking accessory has shaft member, the rotation unblock braking accessory of the shaft member.In order to adjust backrest Gradient, shaft member is seated institute by means of the first operating element rotation on the second braking accessory in torsion proof mode The first bar stated in shaft member is pivoted.First bar drives the second bar that actuated element is connected in torsion proof mode.Pivot The second bar for turning causes actuated element to rotate, and rotary motion is transferred to the shaft member of the first braking accessory for this.Two braking accessories All unlock.In order to allow backrest freely to pivot, the second braking accessory is allocated free pivot attachment, and the free pivot attachment is made For the second locking mechanism of the second braking accessory, the free pivot attachment can lock by pivotable ratchet.The ratchet Opened by means of the second operating element, and the ratchet is pulled by means of cable when the ratchet is pivotally opened and pivots the Two bars.The second bar for pivoting causes actuated element to rotate, and thus rotary motion is transferred to the shaft member of the first braking accessory.It is described First braking accessory and the free pivot attachment unblock for distributing to the second braking accessory, and the second braking accessory keeps locking.Borrow Help described fitting system, realize memory back gradient.When backrest is freely pivoted and is subsequently back pivoted, Previously positioned back gradient recovers.This free functions of pivoting facilitates access to back seat, particularly in two-door vehicle In the case of.

From the A1 of DE 10 2,008 026 176 it is also known that the memory with back gradient and with it is additional from By the fitting system of pivot attachment.

The U1 of DE 20 2,010 015 093 disclose another being used for free functions of pivoting and back gradient memory The fitting system of seat.Regulation accessory and free pivotal fittings for adjusting backrest gradient is designed to list Only braking accessory and disposed adjacent one another on the axial direction with regard to the pivot axis of backrest.This arrangement needs are used for The structure space in the axial direction of two braking accessories adjacent to each other.

Known a kind of gear piece with free functions of pivoting from the B2 of US 7,571,962.First set and assembling parts department and Two set and assembling parts departments gear connection each other, to adjust the gradient of backrest.3rd set and assembling parts department is pivotably mounted on and is fastened to first and matches somebody with somebody In the support ring in part portion.Additionally, the braking member for independently forming is located and is fastened in the support ring, so that the braking unit Part is fixedly connected to the first set and assembling parts department.The dentation ratchet being pivotably mounted on the 3rd set and assembling parts department is locked with braking member, For this purpose, the braking member is equally dentation in the region of radial protrusion.If ratchet is opened, backrest can be free Pivot.Especially, it is this freely to pivot for so that passenger is more easily accessible to back seat.

The content of the invention

Technical problem

The present invention is based on to improve to have additional free functions of pivoting and be particularly used for having and refers to class in beginning The problem of the braking accessory of the fitting system of type, especially, the present invention is based on the additional freedom provided for braking accessory The problem of the firm and zero-lash locking of functions of pivoting, the locking is simultaneously optimised in terms of weight and structure space.

Solution

The problem is solved according to the present invention by means of a kind of braking accessory and by means of a kind of seat.

Improvement that can be independent or in combination with one another is the theme of dependent claims.

Due to the free functions of pivoting added, the braking accessory has two locking mechanisms.First locking mechanism is used for The gradient of the backrest of seat is adjusted within comfort tuning scope；Second locking mechanism is used in first locking mechanism Backrest is additionally caused freely to pivot during locking, so as to contribute to entering back seat.

Due to the 3rd set and assembling parts department, locking cam, the side to be hinged in the second pin joint on the 3rd set and assembling parts department Formula is connected to locking cam in the 3rd pin joint and the coupling device and ratchet limit of ratchet is connected in the 4th pin joint Determine four-bar chain, optimised in terms of cost and weight and with additional free functions of pivoting braking accessory is provided.Root Can replace regulation accessory for adjusting back gradient and from DE 20 2,010 015 according to the braking accessory of the present invention Free pivotal fittings in 093 U1 in known fitting system, and its here takes less structure space.

Fitting system, particularly it is used to that for the fitting system that the backrest of seat is attached to seat support portion basis can be included One or more of the invention, particularly two braking accessories.

Free functions of pivoting is locked by means of detent system, wherein, in the second pin joint on the 3rd set and assembling parts department Locking cam, be connected in the 3rd pin joint locking cam in hinged way and be connected to ratchet in the 4th pin joint Coupling device and the ratchet limit four-bar chain.As a result, ratchet can be locked in the region of dead-centre position, stopped described In point position, acted in the way of opening power on ratchet, particularly impact force can by with it is extremely simple and it is effective just Formula is supported.

The gear part of four-bar chain need not be connected to each other via pure swivel.In optimal way, the hinge of four-bar chain One in contact is designed to rotate and slip joint, and remaining pin joint is designed to pure swivel.As a result, institute Stating ratchet can be crossed dead-centre position and be locked.When the second pin joint is designed to rotate and slip joint and remaining hinge When contact is designed to swivel, it is particularly effective.

If spring towards ratchet latched position direction to four-bar chain, especially locking cam prestress, and will lock It is to contact with ratchet to determine cam pivots, due to rotate and slip joint and the caused clearance being necessarily present in four-bar chain not With to the negative effect for locking degree of freedom in the course of normal operation of seat from clearance.Thus, as translation direction On peak excursion result, the ratchet locking cam of the clamping surface being designed to preferably in self-locking device rotating and Slip joint is clamped on the locking surface of the first set and assembling parts department in the case of need not being arranged in zero-lash mode.

Dead-centre position can be by being located at vacation between the second pin joint and the 4th pin joint in the lock-out state of ratchet Think the 3rd pin joint on connecting line or the 3rd pin joint between connecting line and ratchet and in a particularly simple way Produce.

The locking cam that braking accessory is preferably pivoted by being in reverse to the power of spring is unlocked to unlock ratchet, also, at this During, four-bar chain causes ratchet to move towards the direction of its unlocked position.For this purpose, locking cam includes being rotatably mounted Bearing journal in the opening of the 3rd set and assembling parts department, therefore form the second pin joint.Bearing journal preferably has particularly polygon The heterointerface of shape form, so as to the handle being at least connected indirectly on the backrest of seat.

Support ring preferably connects, preferably fixedly connects, is especially welded onto the first set and assembling parts department.Support ring is relative to first Set and assembling parts department supports the 3rd set and assembling parts department.As a result, the 3rd set and assembling parts department necessarily to be mounted directly on the first set and assembling parts department, and this is significantly assisted in Free functions of pivoting is also incorporated on disc braking accessory, the disc braking accessory is known per se and initial designs Not have free functions of pivoting.

The clearance being alternatively present in braking accessory can preferably by the supporting surface and the 3rd accessory of support ring The inner surface being open is supported the fact that non-circular design to be adjusted so that in this way, in portion by fastening in support ring To the rotation of the first set and assembling parts department as described before support ring, the clearance can be conditioned.It is this adjust clearance mode for example from Known to the B4 of DE 100 41 604.

Description of the drawings

The present invention is described in detail hereinafter with reference to the advantageous example embodiment being shown in the drawings.However, the present invention is not It is confined to the example embodiment.In the accompanying drawings：

Fig. 1 illustrates the schematic illustration of seat,

Fig. 2 illustrates the perspective view of the fitting system of the seat from Fig. 1,

Fig. 3 illustrates braking accessory, being particularly used to brake the second lock of the free functions of pivoting of accessory including adapter Determine the decomposition diagram of mechanism,

Fig. 4 illustrates the decomposition diagram of the disc-shaped units of the first locking mechanism with braking accessory, wherein the first set and assembling parts department Illustrate in simplified form,

Fig. 5 illustrates the top view of braking accessory,

Fig. 6 illustrates the section of the line VI-VI along Fig. 5 of braking accessory,

Fig. 7 illustrates the section of the line VII-VII along Fig. 5 of braking accessory,

Fig. 8 illustrates the section of the line VIII-VIII along Fig. 5 of braking accessory,

Fig. 9 illustrated without lid and in the state of not holding spring, the system under the lock-out state of free pivoting device The top view of dynamic accessory,

Figure 10 illustrates the view that Fig. 9 is corresponded to during free pivoting device is unlocked,

Figure 11 illustrates the view corresponding to Fig. 9 of the free pivoting device for unlocking completely, and

Figure 12 illustrated when backrest is freely pivoted, the view corresponding to Fig. 9 of the free pivoting device of unblock.

Specific embodiment

Seat 1 for motor vehicles has seat support portion 3 and backrest 4, and the backrest 4 can be at it relative to seat support Adjust in the gradient in portion 3.By fitting system 9, backrest 4 can be adjusted first in its gradient relative to seat support portion 3, As a result, multiple use positions are defined, and secondly backrest 4 can be pivoted freely, i.e. can be pivoted forwardly under non-use position, For example to facilitate access to back seat.Fitting system 9 has accessory on every side of seat.

First accessory 10 has two locking mechanisms, first locking mechanism the first set and assembling parts department 11 and the second set and assembling parts department 12 it Between work.Additionally, implementing the second locking mechanism for being integrated free pivot attachment in the braking for being connected to the first set and assembling parts department 11 Work between the set and assembling parts department 74 of plate 115 and the 3rd.In the variant of example embodiment, keep plate 115 is integrated into the first set and assembling parts department In 11.

Second accessory 10a is realized without additional free pivot attachment, that is to say, that it is disk that the accessory only has The first locking mechanism of shape unit.Two accessories 10,20 are via the actuated element for being designed as latch release shaft 7 with DE 10 2,008 026 Mode described in 176 A1 is coupled each other.Latch release shaft 7 limits the direction item for cylindrical coordinate.With free pivot attachment The first accessory 10 hereinafter referred to as braking accessory 10.

In order to adjust the gradient of backrest 4, the solution being arranged horizontally in the transitional region between seat support portion 3 and backrest 4 Lock shaft 7 is for example actuated manually by means of action bars 5 or is activated in electronic mode for example by means of motor.In vehicle seat On the both sides of chair 1, latch release shaft 7 is bonded in this way in two accessories 10,10a so that latch release shaft 7 is around its longitudinal axis Rotate and unlock two first locking mechanisms of accessory 10,10a, so that the gradient of backrest 4 can change.In the process In, keep locking as the free pivot attachment of the second locking mechanism of braking accessory 10.

By actuation handle 8, the free pivot attachment and the second accessory 10a for braking accessory 10 is unlocked, and therefore leans on The back of the body can be pivoted freely.In this process, the between first set and assembling parts department 11 and the second set and assembling parts department 12 of braking accessory 10 One locking mechanism keeps locked.

Braking accessory 10 is described below, that is to say, that the first accessory with extra free pivot attachment.Braking First set and assembling parts department 11 and the second set and assembling parts department 12 of accessory 10 relative to each other can rotate around axis A.Axis A heres and unblock The central axis alignment of axle 7.Two difference approximate descriptions of set and assembling parts department 11 and 12 are disc.Two set and assembling parts departments 11 and 12 preferably by The metal that at least can harden in the zone, particularly steel are constituted.In order to absorb axial force, i.e. in order to by set and assembling parts department 11 Together with 12 axially retain, snap ring 13 is set.Preferably, snap ring 13 is made up of preferred unsclerotized metal, particularly steel.Card Ring 13 preferably has essentially flat annular shape, but in alternative embodiments, the snap ring 13 can also have L-shaped Profile, it has cylindrical cross-section and has flat, annular section in side.

Snap ring 13 is for example fixedly connected to two and is matched somebody with somebody by laser welding or another tightening technology known per se One in part portion 11 and 12, in this example, be connected to the second set and assembling parts department 12 in outer zone section.By being arranged in perpendicular to axle To the internal ring section in the plane in direction, snap ring 13 is outside in the footpath of the first set and assembling parts department 11 alternately through the insertion of slip ring It is bonded in marginal area on the first set and assembling parts department 11, and does not hinder the relative motion of two set and assembling parts departments 11 and 12.Additionally, two are matched somebody with somebody The inner surface of the face each other in part portion 11 and 12 is avoided foreign body and dust enters and avoids damaging.

Therefore snap ring 13 is clamped in two set and assembling parts departments 11 and 12 with the set and assembling parts department 11 or 12 of the snap ring is fixedly connected to Another, another in described two set and assembling parts departments 11 and 12 can be moved relative to snap ring and previous set and assembling parts department.In structure Aspect, therefore, the disc-shaped units of the sub-component as braking accessory 10 are formed together with two set and assembling parts departments 11 and 12 (with snap ring 13).

In the case where being mounted with to brake accessory 10, the second set and assembling parts department 12 is fixedly connected to chair by means of adapter 112 The structure of portions 3, that is to say, that fix relative to seat support portion.First set and assembling parts department 11 is permanently connected, is welded in this example Keep plate 115, this will be described below.Keep plate 115 can lock onto the 3rd set and assembling parts department 74 by means of detent system, This is described in more detail below.3rd set and assembling parts department 74 is rotatably mounted relative to the first set and assembling parts department 11.For this purpose, support ring 71 are welded to the first set and assembling parts department 11, and first set and assembling parts department 11 is pivotably supported the 3rd set and assembling parts department 74.3rd set and assembling parts department 74 is consolidated Surely it is connected to the structure of backrest 4.However, the distribution of set and assembling parts department 12 and 74 can be exchanged, that is to say, that the 3rd set and assembling parts department 74 will Fix relative to seat support portion, and the second set and assembling parts department 12 will be fixed relative to backrest.Braking accessory 10 is in backrest 4 and seat support portion In power stream between 3.

The first locking mechanism of braking accessory 10 is designed as wherein the first set and assembling parts department 11 and the second set and assembling parts department 12 can be locked To mutual accessory, as example, described in the B3 of DE 10 2,006 015 560, its disclosure in this respect is clearly incorporated to Herein.The A1 of DE 10 2,010 020 013 also disclose this accessory.

Second set and assembling parts department 12 has guiding segments 14 (having four guiding segments in this example), and the guiding segments pass through Paired straight guide surface laterally guides in radial directions in each case a capture pieces 16.Capture pieces 16 (show at this One have four capture pieces 16 in example) in the structure space being limited between two set and assembling parts departments 11 and 12 relative to each other Arranged offset (offsets in each case in this example 90 °).Capture pieces 16 are provided with tooth, the tooth energy on its radial outer end Enough to engage (engagement) with the ring gear of the first set and assembling parts department 11, the ring gear of first set and assembling parts department 11 is the form of internal gear.Work as ring gear When interacting with capture pieces 16, the first locking mechanism for braking accessory 10 is locked.In alternative embodiments, capture pieces 16 Quantity be 1,2,3 or more than 4.

Driver 21 is arranged in the central authorities of braking accessory 10.Driver 21 extends upward and around axle in the side of axis A Line A is provided with the access portal for receiving latch release shaft 7.

The eccentric part 27 being arranged in the structure space being limited between set and assembling parts department 11 and 12 is located in torsion proof mode In driver 21.Spring assembly 35 is arranged in one (the second set and assembling parts department 12 in this example) in two set and assembling parts departments 11 and 12 Central receiver in, and in this example external support on the central receiver.Spring assembly 35 acts on bias On part 27, it is seated in the profile section of driver 21 in torsion proof mode by means of the spring assembly in this example Act on side on eccentric part 27, the profile section has the design of general square shape cross section.The spring dress of this type 35 are put for example described in the B3 of DE 10 2,005 046 807, its disclosure in this respect is clearly expressly incorporated herein.By spring assembly 35 effects eccentric part 27 thereon is acted on radially displaceable capture pieces 16 and to the radially displaceable capture pieces 16 In being pressurized so that the radially displaceable capture pieces are pushed radially outwardly to be engaged on ring gear, so as to lock braking accessory 10 First locking mechanism.

Control panel 36 is shown in the structure space being disposed axially between the set and assembling parts department 11 of capture pieces 16 and first and at this It is seated on eccentric part 27 in torsion proof mode in example.Control panel 36 has control track (having four in this example), institute State control track to act on the lug 38 of each capture pieces 16 in each case.In this case, lug 38 is in axial side Project from capture pieces associated there 16 upwards.In driver 21 and the eccentric part 27 by the driver drives and In the case that control panel 36 is in reverse to power rotation (if mass dryness fraction) of spring assembly 35, control panel 36 radially-inwardly pulls capture pieces 16, that is to say, that be drawn out ring gear, and therefore brake that accessory 10 is unlocked and two set and assembling parts departments 11 and 12 can be relative to One another around axis A rotations.Backrest 4 can pivot to be adjusted in terms of its gradient around axis A now, that is to say, that with Take different use positions.

Dead ring 24 is fixedly connected to the end that the protrusion of driver 21 goes out outside the second set and assembling parts department 12.

After braking accessory 10 is fastened to seat 1, as long as freely pivot lock (being described below) not being unlocked, First set and assembling parts department 11 is connected with backrest 4 (locking).Second set and assembling parts department 12 is fixedly connected to seat support portion 3 via adapter 112 Structure, that is, be fixed in seat support portion.However, the distribution of set and assembling parts department 11 and 12 can also be exchanged, that is to say, that the first set and assembling parts department 11 To be fixed in seat support portion, and the second set and assembling parts department 12 will be connected with backrest 4.Therefore, accessory 10 is braked in backrest 4 and seat support portion In power stream between 3, and therefore two set and assembling parts departments 11 and 12 be preferably made up of metal, particularly steel.

The occupant of seat 1 enables to the single comfort requirement that the gradient of backrest is adapted to occupant.Backrest Comfort conditioned scope is limited by the retainer 112a for being fixedly connected to adapter 112, and the adapter 112 is fixed on seat support portion On, the retainer 112a is bonded between the first cam 120 of keep plate 115 and the second cam 130.The He of first cam 120 Second cam 130 is projected as function geometry, the circle in radial directions in the circular basic shape of keep plate 115 Shape basic configuration is extended concentrically about relative to axis A.The first stop surfaces 120a towards retainer 112a is in the first cam 120 Upper formation, and the second stop surfaces 130a towards retainer 112a formed on the second cam 130, in the stop surfaces In each case in two end points of the comfort conditioned scope of backrest one at breasting retainer 112a and Prevent from braking the further regulation of accessory 10.The distance between first stop surfaces 120a and the second stop surfaces 130a are more than The size of the retainer 112a between described stop surfaces 120a, 130a, as a result, the comfort conditioned scope of backrest is defined.

Keep plate 115 by being pushed on the step cutting pattern of the first set and assembling parts department 11 relative to the concentric circular opens of axis A, And the step cutting pattern is equally concentric relative to axis A.Keep plate 115 is preferably laser-welded to the first set and assembling parts department.Step Diameter D with preferred 60mm, and in the application of the braking accessory 10 without free pivot attachment, the step is used for will First set and assembling parts department 11 is connected on armchair structure, is preferably attached in the structure of backrest 4.

In addition to the disc-shaped units of the part with the first locking mechanism being included in, the braking accessory 10 also include the free pivot attachment as second locking mechanism.Two locking mechanisms can be operated independently of one another.3rd matches somebody with somebody Part portion 74 is by means of being fastened to the support ring 71 of the first set and assembling parts department 11 in first set and assembling parts department 11 away from the second set and assembling parts department 12 That side on be installed on the first set and assembling parts department 11.3rd set and assembling parts department 74 of substantially plate shape is connected to the backrest structure of backrest 4, and And in order to freely pivot what central authorities realized relative to the first set and assembling parts department 11, the 3rd set and assembling parts department 74 can be surrounded parallel to solution The central axis A (being limited by support ring 71) of lock shaft 7 is pivoted.As long as no contrary description, all rotations described below are enclosed Carry out around the rotation axiss parallel to axis A.

Support ring 71 has the basic geometry of annular, and it has the substantially constant cross section of periphery, the cross section With in the upwardly extending web in the side of axis A, and, two web ends, corresponding alar part extends perpendicular to web. Two alar part heres extend in radial direction and in opposite directions from web end, and therefore cross section substantially has Z Shape.

The clearance being optionally present in braking accessory 10 can pass through the supporting surface and the 3rd set and assembling parts department of support ring 71 Be that the inner surface of the supporting opening of non-circular design is adjusted in 74, and by fastening in support ring 71, particularly laser welding The mode of rotation to before the first set and assembling parts department 11, clearance can be conditioned.This mode for adjusting clearance is for example from DE 100 41 Known to 604 B4.

When using seat 1, the 3rd set and assembling parts department 74 is locked into the first set and assembling parts department 11.For this purpose, be fastened to first matching somebody with somebody The keep plate 115 in part portion 11 has the projection 140 as another function geometry, and the projection 140 is dashed forward in radial directions Go out the basic geometry of circle of keep plate 115 and be rotatably installed in the 3rd set and assembling parts department with by means of bolt 82 Ratchet 80 on 74 that side towards the first set and assembling parts department 11 interacts.

Ratchet 80 has the basic geometry similar to L shape, and it has long alar part and short limb portion.In the back of the body of long alar part Circular port in the end regions in short limb portion is used to receive bolt 82 and form ratchet together with the bolt Supporting-point in 80 the first pin joint D1 on the 3rd set and assembling parts department 74.Company between the long alar part of ratchet 80 and short limb portion In connecing region, locking cam 80a is formed for being interacted with the locking surface 140b of projection 140.In order to by the 3rd accessory Portion 74 locks onto the first set and assembling parts department 11, and locking cam 80a is supported on the locking surface 140b of projection 140 in free pivotal orientation On.

By the way that when having completed and when reaching the use position of backrest 4 again Yi Dan freely pivoting, eccentric bolt 84 runs Against the stayed surface 140a of projection 140, the eccentric bolt 84 as the retainer on the 3rd set and assembling parts department 74 is used to limiting the Pivoting action of three set and assembling parts departments 74 in the pivotal orientation backward of backrest 2.In order to compensate manufacturing tolerance, eccentric bolt 84 is in its axle There is step on direction, the step is relative to each other eccentric substantially cylinder-shaped step.The insertion of eccentric bolt 84 Cylindrical portion in the circular port of three set and assembling parts departments 74 the certain radial disbalance of radial deflection away from and be displaced to eccentric bolt 84 Another cylindrical portion, wherein last-mentioned cylindrical portion contacts stayed surface 140a when reaching again using position.When inclined When cylindrical portion of the heart bolt 84 in the 3rd set and assembling parts department 74 of insertion rotates, in contacting the cylindrical portion of stayed surface 140a Thus heart point moves along circular path, and the circular radius corresponds to eccentric throw.During installation fitting, eccentric bolt 84 The nominal position already at the 3rd set and assembling parts department 74 relative to the first set and assembling parts department 11 is rotated up relative to the 3rd set and assembling parts department 74；Partially Heart bolt 84 is then secured on the 3rd set and assembling parts department 74, is especially welded onto on the 3rd set and assembling parts department 74.

In order to compensate manufacturing tolerance, bolt 82 can also be constructed by way of corresponding bias step.Bolt Cylindrical portion in the circular port of 82 set and assembling parts department 74 of insertion the 3rd then has relative to for installing the cylindrical portion of ratchet 80 The parallel central axis for radially of the central axis offseting, the parallel central axis limits the first pin joint D1.As a result, spiral shell is supported The eccentric throw of bolt 82 is defined.When cylindrical portion of the bolt 82 in the 3rd set and assembling parts department 74 of insertion rotates, the first hinge Contact D1 is moved along circular path, and the circular radius corresponds to eccentric throw.During installation fitting, support holes 82 are relative The first pin joint D1 is rotated up in the 3rd set and assembling parts department 74 reached its optimum position, and ratchet 80 by means of locking cam The maximum of 80a is engaged and is bonded on the locking surface 140b of projection 140 in gapless mode, in this example, in self-locking In fixed angular range or alternately outside the angular range of self-locking；Bolt be then attached to the 3rd set and assembling parts department 74, Especially it is welded to the 3rd set and assembling parts department 74.

Locking cam 90 is rotatably being matched somebody with somebody at the second pin joint D2 being spaced apart with the first pin joint D1 towards first It is installed on the 3rd set and assembling parts department 74 on that side in part portion 11.For this purpose, locking cam 90 has at one end bearing journal 90a, the bearing journal 90a are vertically projected from locking cam 90, are extended parallel to axis A and inserted by means of bushing 94 In the opening of the 3rd set and assembling parts department 74.The free end of bearing journal 90a projects through the 3rd set and assembling parts department 74, also, away from the On the side of one set and assembling parts department 11, the free end of the bearing journal 90a is substantially several in the basic plate of the 3rd set and assembling parts department 74 What is projected in shape.The free end of bearing journal 90a has abnormity design, particularly polygonal design.It is formed with correspondence to match somebody with somebody The part of profile can be promoted in the axial direction so that being provided in bearing journal 90a and between pushing mechanism antitorque The connection for turning.In this example, it is bar (not shown in the accompanying drawings) by pushing mechanism, the bar is pulled and operability via cable Be connected to handle 8, the handle 8 is fastened in the upper area of backrest 4.The actuating of handle 8 cause bearing journal 90a and And hence in so that locking cam rotates around the second pin joint D2.

Coupling device 98 with flat, elongated basic configuration is connected at first end in the first pin joint D3 That end away from bearing journal 90a of locking cam 90.The second end of coupling device 98 is connected to spine in the 4th pin joint D4 The short limb portion of pawl 80.

3rd pin joint D3 is formed by cylindrical journal 90b, and cylindrical journal 90b deviates from locking cam 90 The end of bearing journal 90a projects and is bonded in the elongated hole of the first end of coupling device 98 parallel to axis A.Due to The pairing of the elongated hole of cylindrical journal 90b and coupling device 98, the 3rd pin joint D3 is designed as rotating and slip joint, and because This, in addition to pure rotational motion, the 3rd pin joint D3 also allow between coupling device 98 and locking cam 90 by thin The translation that long hole geometry is limited.

4th pin joint D4 is by being inserted through the circular port of the second end of coupling device 98 and the short limb portion of ratchet 80 End regions in circular port rivet 96 formed and to produce pure swivel in the way of rivet.

The ratchet 80 that is arranged in the first pin joint D1 on the 3rd set and assembling parts department 74, it is arranged in the second pin joint D2 the Locking cam 90 on three set and assembling parts departments 74 and be connected in articulated manner in the 3rd pin joint D3 locking cam 90 and The coupling device 98 for being connected to ratchet 80 in 4th pin joint D4 in articulated manner limits essentially flat four-bar chain (its coupling To the 3rd set and assembling parts department 74), the four-bar chain is used to unlocking and locking free functions of pivoting.

The lid 78 being fastened on the 3rd set and assembling parts department 74 covers at least in part the above-mentioned various pieces of free pivot attachment simultaneously And the part is protected from pollution.In addition to being arranged in the hole of the 3rd set and assembling parts department 74, bolt 82, locking cam 90 Supported with eccentric bolt 84 or in the relative sectional hole patterns in lid 78.

Under the lock-out state using position, ratchet 80 has been engaged, i.e. locking cam 80a is supported on locking surface On 140b.Effective spring 92 is with (inverse in Fig. 9 in the direction for contacting ratchet 80 between locking cam 90 and the 3rd set and assembling parts department 74 Clockwise) on moment of torsion act on locking cam 90.Thus ratchet 80 is maintained at its lock under normal maneuvering load Positioning is put.3rd pin joint D3 is located on the imaginary connecting line L between the second pin joint D2 and the 4th pin joint D4 or (depends on In tolerance position) slightly it is located between connecting line L and ratchet 80.Thus locking cam 90 and coupling device 98 are actually oriented in one On bar line.Cam 90 is laterally supported on ratchet 80 so that the 3rd pin joint D3 can not be further towards the direction of ratchet 80 It is mobile.As a result, four-bar chain is in locking (stop) position；Due to locking cam 90 and the extended position and cam of coupling device 98 90 are supported on ratchet 80, even if high impact force is acted on can not open on ratchet 80 ratchet 80.As the 3rd pin joint D3 When being designed as rotating with slip joint, under collision accident, path for translation that is little within a fitting, limiting is through until supporting The edge of the elongated hole of axle journal 90a breastings coupling device 98.

During free functions of pivoting is unlocked, by actuation handle 8, locking cam 90 is in reverse to the power of spring 92 and is pivoted Away from ratchet 80.3rd pin joint D3 is moved on that side away from ratchet 80 of connecting line L.By means of coupling device 98, lock Determine cam 90 and ratchet 80 pulled out into latched position, and therefore ratchet 80 locking cam 80a no longer breasting locking surface 140b, And the 3rd set and assembling parts department 74 can be moved together with backrest in free pivotal orientation.Backrest 4 can be pivoted freely.If such as it Front the 3rd described pin joint D3 is located between connecting line L and ratchet 80 under the lock-out state of free pivot attachment, the 3rd hinge Contact D3 is designed as rotating and slip joint enables the 3rd pin joint D3 during unblock operation beyond extended position, That is, connecting line L.In a modified embodiment, in other pin joints D1, D2, D4 replaces the 3rd pin joint D3 to be designed as Rotate and slip joint.Remaining pin joint is designed as pure swivel.

In order to allow to guarantee under all tolerance conditions to unlock free functions of pivoting, ratchet 80 being capable of pivot in the direction of the opening Turn slightly farther.

During free pivot action, the locking cam 80a of ratchet 80 is leaned against in the radially outside boundary of projection 140 and edge The radially outside boundary to slide.Even if handle 8 after little free pivoting angle therefore, it is possible to also remaining un-activated.The Three set and assembling parts departments 74 are pivoted back to reverse order and locked with therefore backrest 4.

The fixing spring 86 for being fastened to bolt 82 is dashed forward by spring arm 86a with prestress breasting in the axial direction Play 140.If the 3rd set and assembling parts department 74 is pivoted forwardly to big degree, spring arm 86a leaves projection 140 and in ratchet 80 Flick on direction, as a result, the spring arm is prevented from after stayed surface 140 and engages.

According to the present invention, projection 140 is integrally formed on keep plate 115, i.e. projection forms keep plate with material cell 115 one portion and not the part for individually producing for retrospectively fastening.First cam 120 and the second cam 130 are preferably It is integrally formed on keep plate 115 (or in support ring 71).

Various embodiments for projection 140 and ratchet 80 are possible.In a modified embodiment, ratchet 80 can have There are the multiple teeth with the multiple tooth steric interactions in projection 140.

No matter independent the feature disclosed in description, claims and drawing more than is or combination is for various improvement Mode realizes it being very important for the present invention.

Reference numerals list

1 seat

3 seat support portions

4 backrests

5 action bars

7 latch release shafts

8 handles

9 fitting systems

10 first accessories, braking accessory

The accessories of 10a second

11 first set and assembling parts departments

12 second set and assembling parts departments

13 snap rings

14 guiding segments

16 capture pieces

21 drivers

24 dead rings

27 eccentric parts

35 spring assemblies

36 control panels

38 lugs

71 support rings

74 the 3rd set and assembling parts departments

78 lids

80 ratchets

80a locking cams

82 bolts

84 eccentric bolts

86 fixing springs

86a spring arms

90 locking cams

90a bearing journals

90b axle journals

92 springs

94 bushings

96 rivets

98 coupling devices

112 adapters

112a retainers

115 keep plates

120 first cams

The stop surfaces of 120a first

130 second cams

The stop surfaces of 130a second

140 projections

140a stayed surfaces

A axis

D diameters

The pin joints of D1 first

The pin joints of D2 second

The pin joints of D3 the 3rd

The pin joints of D4 the 4th

L connecting lines (D2-D4)

Claims

1. a kind of braking accessory (10) for seat, braking accessory (10) includes：

A) the first set and assembling parts department (11) that can relative to each other rotate and the second set and assembling parts department (12),

B) capture pieces (16), the capture pieces (16) between lock-out state and released state in first set and assembling parts department (11) and It is movably guided in second set and assembling parts department (12), and the capture pieces (16) under the lock-out state with it is described Another ring gear in first set and assembling parts department (11) and the second set and assembling parts department (12) interacts to lock braking accessory (10), With

C) the 3rd set and assembling parts department (74), the 3rd set and assembling parts department (74) is pivotably mounted relative to first set and assembling parts department (11), Wherein described 3rd set and assembling parts department (74) can be by means of ratchet (80) and the keep plate for being fastened to first set and assembling parts department (11) (115) lock or lock with first set and assembling parts department (11), the ratchet (80) is arranged on institute in the first pin joint (D1) State on the 3rd set and assembling parts department (74),

It is characterized in that

D) the 3rd set and assembling parts department (74), the lock tab in the second pin joint (D2) on the 3rd set and assembling parts department (74) Wheel (90), the locking cam (90) is connected in the 3rd pin joint (D3) in articulated manner and in the 4th pin joint (D4) coupling device (98) and the ratchet (80) that the ratchet (80) are connected in limits four-bar chain (74,80,98,90).

2. it is according to claim 1 to brake accessory (10), it is characterised in that the hinge of the four-bar chain (74,80,98,90) At least one of contact (D1, D2, D3, D4) is designed as rotating and slip joint, and the four-bar chain (74,80,98,90) Remaining pin joint (D1, D2, D3, D4) be designed as swivel.

3. it is according to claim 2 to brake accessory (10), it is characterised in that second pin joint (D2) is designed as rotating And slip joint, and remaining pin joint (D1, D3, D4) is designed as swivel.

4. it is according to claim 1 to brake accessory (10), it is characterised in that locking of the spring (92) towards the ratchet (80) The four-bar chain (74,80,98,90) prestress is given in the direction of position.

5. it is according to claim 4 to brake accessory (10), it is characterised in that the spring (92) is towards the ratchet (80) The locking cam (90) prestress is given in the direction of latched position.

6. it is according to claim 4 to brake accessory (10), it is characterised in that the spring (92) causes the locking cam (90) pivot as the contact ratchet (80).

7. it is according to claim 5 to brake accessory (10), it is characterised in that the spring (92) causes the locking cam (90) pivot as the contact ratchet (80).

8. the braking accessory (10) according to any one of claim 4-7, it is characterised in that in order to by the ratchet (80) Unblock, the locking cam (90) is in reverse to the power of the spring (92) and pivots, also, in this process, the four-bar chain (74,80,98,90) ratchet (80) is caused to move towards the direction of its unlocked position.

9. the braking accessory (10) according to any one of claim 1-7, it is characterised in that in the lock of the ratchet (80) Under determining state, the 3rd pin joint (D3) is located at the vacation between second pin joint (D2) and the 4th pin joint (D4) Think on connecting line (L).

10. it is according to claim 9 to brake accessory (10), it is characterised in that to operate the phase in the unblock of the ratchet (80) Between, the 3rd pin joint (D3) by means of the four-bar chain (74,80,98,90) move to the connecting line (L) away from institute State on that side of ratchet (80).

The 11. braking accessories (10) according to any one of claim 1-7, it is characterised in that in the ratchet (80) Under lock-out state, the 3rd pin joint (D3) is located between second pin joint (D2) and the 4th pin joint (D4) Between imaginary connecting line (L) and the ratchet (80).

12. brakings accessory (10) according to claim 11, it is characterised in that operate the phase in the unblock of the ratchet (80) Between, the 3rd pin joint (D3) by means of the four-bar chain (74,80,98,90) move to the connecting line (L) away from institute State on that side of ratchet (80).

The 13. braking accessories (10) according to any one of claim 1-7, it is characterised in that the locking cam (90) Including bearing journal (90a), the bearing journal (90a) is rotatably installed in the opening of the 3rd set and assembling parts department (74), So as to form second pin joint (D2), and the bearing journal (90a) has for being at least connected indirectly to handle (8) Interface.

14. brakings accessory (10) according to claim 13, it is characterised in that it is many that the bearing journal (90a) has The interface of side shape form.

The 15. braking accessories (10) according to any one of claim 1-7, it is characterised in that support ring (71) is connected to First set and assembling parts department (11), and the support ring (71) supports the 3rd accessory relative to first set and assembling parts department (11) Portion (74).

16. brakings accessory (10) according to claim 15, it is characterised in that the support ring (71) is welded to described the One set and assembling parts department (11).

The 17. braking accessories (10) according to any one of claim 1-7, it is used for automobile seat.

A kind of 18. seats (1), the seat includes seat support portion (3), backrest (4) and at least one will according to right The braking accessory (10) any one of 1-16 is sought,

Wherein described seat support portion (3) is connected to the second set and assembling parts department (12) described at least one, and the backrest (4) be connected to Few 3rd set and assembling parts department (74).